Printing-press.



M. A. DROITGOURL v PRINTING PRESS. AEPLIGATIOR FILED 11mm. 1909. RENEWED JULY 1. 1910. v

Patented Jan. 31-, 1911.

HTS-SHEET 1.

In e/2km v mm a I: Q

M. A. DROITGOUR.

PRINTING PRESS.

LED Jam: 7. 1909. B

APPLICATION I! ESEWEIJ JULY 1, 1910.

Patented Jar. 31

s smms-sx2n MQA. 13110131101111.

PRINTING PRESS.

APPLIOA'I'IOK $11.31) 111112: 7, 1909. 11211111121) JULY 1,-1a1o.

a ans-1241111111- a;

M. A. DROITCOUR.

PRINTING PRESS.

LPPLTCATKON TILED JUNE-7.1909. RBNSWED JULY 1,1910.

Patented Jan. 31. 1911.

. M. A. DROITOOUR.

PRINTISG PRESS.

APPLICATION PEI-ED JU 909v RENEWED JULY 1. 1910.

Patented Jan. 81. 1911.

6 SHEETS-SHEET 5' Q M. A. DROITCOUB PRINTING PRESS. APPLIC ATION TILED J8EE T, 1969, RENEWED JULY 1, I910.

Patented Jan. 31, 1911 6 SHEETS-SHEET 6.

7 4:0 Liz/M V UNITED STATES egrnnr OFFICE.

MICHAEL A. nnorrcoon, or cmonoo, rumors; ASSIGNOB TO MIEHLE Pnm'rme PRESS AND MANUFACTURING COMPANY, or cmceoo. rumors, A con-common OF ILLINOIS.

PRINTING-PRESS.

Application filed June 7, 1909, Serial No. 500.872. Renewed July 1, 1910. Seriial-Ko. 570,012

To all whom it may concern! Be it known that 1, MICHAEL A. 'Dnorrcorn. a citizen of the United States, residing in Chicago. in the county of Cook and State of Illinois, have invented a new-and useful Improvement in Printing-Presses, of which the following is a specification.

It is a well-known fact that. the, printing me hanism of printing presses is capable of printing sheets at a greater speed than the sheets can be fed toand taken from the mechanism an my endeavor in this invention has been to devise means for feedingthe sheets to and for taking them from the printing mechanism which shall be capable ot' greater speed than any mechanism'heretofore employed for the purpose.

In the feeding mechanism I have embodied the following features whiclrI believe to be new and which are capahle'of' fecdin; a largely increased number of sheets in a given time. Instead of a sin gle feed table and feeding mechanism, I employ two feed tables oue dirtmtly over the other and adapted to deliver the sheets at the same point to the impression cylinder. Each of-these feed tables is provided with its own automatic feeding mechanism andsheet positioning devices. 'and both arrest the sheets and register them just before they are delivered to the cylinder and the advantage of thc'two t'eed tables in point of time is that while one of them ispositioning one sheet the other is feeding another sheet, so that the sheets can be fed very closel after each other and'avoitl any large gap on the cylinder. Another feature of the feeding mechanism is the-provision in the two feed tables of swinging sections. the rising and falling of the free ends of which brings them alternately into registry with a main table upon which is an automatic sheet separating andfeeding' mechanism.

In deliverin; the sheets. I pro ide. two different deliveries. depositing the sheets on different tables. one taking ali the sheets which have been fed by the upper feed table and the other taking all the sheets which have b en fed by the lower feed table. All

these features, as well as the details of the construction of the press. are set forth in the description given below. and they are also illustrated in the accomprzrving drawings in which- Figure l, is a diagrammatic sectional-elevation of the main portions ot the Fig. 2, is an enlarged side elevation of the feeding tables and mechanism, showing the parts notappearing in Fig. 1. Fig. 3, is a section showing the cam controlling the psitioning devices. Fig. 4c, is a section of sheet feeding mechanisms of the two feed tables. Fig. 5, is anenlarged elevation of being arrested on the feed tables, is carried to the impression cylinder and Fig. 6, 13 a section at right angles to F 1g. 5. Fig.7, 1s

table mechanisms. Figs. 8 and 9 are plan views of different parts of the feeding mechanisms;

In the accompanying."rlrawing, 1 repre sents the frame of the press and .2'is the initial main feed table upon which the sheets to be printed are first laid. This feed table .is provided with any of the ordinary" automatic feed devices and .l have shown in com 4. lccatecl below the table. a combing wheel 5 located ahove the table. the operating gears 6. 6. 6, 6 for driving said combing wheel from the shaft 7, and 8 is a-hand wheel on said shaft adapted to he used in effecting adjustment. From the table these sheets are fed bet ween rollers 9 and 10 on to the swinging sections 11 and 12 of the companion or regji ierinn feed tables hereinafter men-. tinned. These swinging sections are pro vided at their rear ends with semi-circular 'pieces 13 and 14 whcrchv the former is adapted to ride on'the shaft 15 and the latter upon the shaft 1 .At their forward ends the are supp rted upon the shafts 71 and 7:? attached to the limbs of a rocking V-shapcd piece 17 rigidly mounted on a to the lever 20. attached at its fro-ward end to a stud 21 carried on the arm 92 it shaft 23. A spring 2% acts on a pro ection 25 of the lever 20 and arm 19 so as to rock the table sections in such manner as to bring the lower section 1:? into receiving POT li10l1 lll d press.

Spe'cificationof Letters Patent. P t t d J 31,1911;

the paper Elamps by which. the sheet.v after" an enlarged partial side elev'ation of the feed bination therewith a roller 3 op rating tapes i pivot 13. having an upright arm lfh pivoted the arm 92 projecting dowmvat'dl x hem- 10o the shaft 93 and retains said arm figl'fll!l. t

shaft 30. and this cam is adapted in one po;". sition. the one shown at Fig. 2. to operate :05

when the roller 21 passes oil the high portion ofthe cam to the lowerportion thereof, the lever 20 and arm 19 are operated so as to rock the support 17 and allow the upper table section 11 to move into register with the table 2.

The sheets are caused to move onto the swinging table sections by the closing upon them of the rollers l) and 10. for this purpose the roller is mounted on an arm 31 rigidly attached to a shaft; 3:3 operated by an arm 33 having a roller 3- contacting with a cam 35km the shaft 36 carrying gear 3?. This cam 35 is adapted to drop the roller 10 at proper times to seize the inconiing sheets and feed them forward, and it is raised as soon as the sheets have passed. For the purpose of advancing the sheets after they have moved on to the movable table sections, I provide further mechanism, consisting of the rollers 35, 39 and 40. Of these, the roller 40 is s'lationarily located so far as vertical movement is concerned. It is supported upon arms 41 upon shaft The roller 39 is supported upon arms 43.2%- tached to rock shaftand oscillates between rollers 38 and d0, acting first with one and then with the other, and is operated i-by'arrn .andleverjtti which is operated from shaft by an arm at? through a roller 48 in contact with a cam 49 on said shaft 30. This cam is adapted to lift and lower roller 39 at proper times, but as its rotary motion in one position should be the reverseof that in its other position I eniploy with it a rack 50 meshing with a gear 51 which drives chain sprocket wheel 52,.

thus giving motion to' sprocket wheel 53 through chain 54. The sprocket wheelf 3 is 40 keyed to shaft which has a gear 56 on it meshing with a gear 57 on shaft The shafts and 58 have friction pulleys 59 and 60'which alternately contact w-iah friction roller 61 keyed to shaft 39. Through the action of the rollers 38, 39 and 40, the sheets are fed to the gages (32 and 63. The roller 38 is raised as the sheets near the gages 62- by the arin 64 on rock shaft, (l5 carrying a second arm 66 joined to a lever 67 connected to a roller 68 operated by cam 69 and are tached to shaft- 30. I also provide the device with means whereby the sheets may be carried into perfeet register with the gages. These devices 55 in printing parlance are called kickers. These kickers, shown at 70 are adjustably mounted upon rods T-l and havin their ,forwardends supportpd upon shafts 61 and 72and their rear ends upon shafts 15 and 0-16. Intermediate of such supports the rods are provided with depending projections or legs 76 arranged in pairs, and between which are shafts T7 and TS passing through a link 79 pivoted at 80 .to ;a stationary 5'bmcket S1. The link T9 is .nivotall onnected toa lever 82 at the forward end of which is a fork 83, the limbs of which movably embra-.:e the shaft 30, and stud EA attachcdto the lever close to the fork enters a box cam 85 keyed to shaft 30. This can! is adapted to impart both forward and back movements to the kickers necessary'to' bring the sheets to the proper register. T he kickers are also adapted to move vertically with the table sections ll and 12 and they also have independent, vertical movementwhich is imparted to them by the shafts 71 and 79 and 15 and 16, the bars Tl and 75 being bent the gages .63, butit will be understood that; they act. alternately in point of time, one

sheet being positioned by them while the other is moving off onto the impression cylinder.

, The side clamps 87 and 88 bring the sheet into register witlrthe side gages S9 and 90 through the endwise motion of shafts 91 and 92. o

After the sheets have been positioned in register with the gages, I provide means for again starting it on its travel to the impression cylinder, these means being adapted to seize the sheet at opposite sides and to give it, while itis in their control, a greatlj. increased speed which at the time it r aches the gripping point will be equal to that of the cylinder, this mechanism being adapted to release the sheetas soon as it is seized by the grippers, These sheetstarting devices may be variously constructed, but the construction I have adapted is that shown in the drawings and consists of clamps 93 at each side of the sheet and adapted to engage the margins thereof and traveling on rods and with a movable clamp 10S pivoted tothe projection 106 and provided with a sprii'ig 109 pressing the clamp against the base. The sheet is clamped between the parts 107 and 108 and is'released therefrom by a lever 110 pivoted 'at 111 and provided with a roller 112 adapted to engage a cam lever 113 'on the clamp 108. The cam lover or projection 113 is notched on the side which re- CGlVU the roller 11:2 and when said roller 11?. is depressed itlifts the clamp from the paper and enters said notch and holds the clamp open. The releasing and closing device is operated by a cam lever 121 attached to a crank 114: mounted upon a rock shaft 115 receiving its motion from an arm 116 bearing upon a earn 11? mounted with the impression cvlinder.

The roller- 118 on the device 110 enters between the cam faces 115) and 120 of cam lever 121 and is partially lifted by the lower cam face. 120 so as to carry the roller 112 above the notch in cam lever 113 without; wholly closing the clamp upon the. sheet. This partial closing of the clamp unlocks it, and permits the clamp to thereafter close quietly on'the sheet withoutthrowing it out of registering position. The cam lever 121 has an extension indicated in dotted lines in Fig. 1- Which acts upon the clamp 93 of the lower'feed table 12 just. as the parts shown in 'full lines in Fig. 4 act. upon the clamp of the upper feed table 11.

' The cam 95) operating through the lever 100. rocks the shaft 98 by the pitman rack 97. which moves the rack 95 part of its travel and at the proper time continues its travel to the starting pointthrough the shaping of cam 99. In this continued movement it causes the tripping of clamps 93, partially closing them. The clamps 93 are fully closed upon the sheet by the movement it causes the tripping of clamps 93 111 through the shaft 115 and cam-lever 116 actuated by the cam 11?. This causes amovement ofthe cam-lever 121 in a direction there-verse of the feed so that the rollers 118 of the clamps 93 move upward along the faee'ot' (am 119. This allows the clamp jaws 108 to close upon the sheet through the action of the springs 109. At. this time the gages (52 lift away from the sheet through the action of the shaft 122 operated by lever 1'22) lifted lrv bell-crank .124 actuated by a connecting" rod 125 which receives this motion through a cam 1-36 on shaft 2) The sheet being now clamped at.- hoth sides by clamps 93 and the gage being litted out. of the way, is in condition to be again started on its movement to the impression eylinder and that movement is now imparted to it through the cam 99, the

lever 100. the pitman rack 97 rocking shaft 98 and through said shaft sliding rack (m rod 94. carr -'iug' with said rack the clamps 93 and lowing: the sheet forward until it. reaches the gripping point of the cylinder. This movement is accelerated just before the paper reaches the gripping point, so that when itleaches that point, t

will be moving at the same speed as the cylinder when the grippers 127 close upon the Sli f-tl. In this starting iiiovciuent of the sin-rt the clamps U3 arepiovml forward and the rollers 11b encouiitci' camface 1:28 of lever 121 and are thereby caused to release the sheet so that the cylinder grippers can then take full control of it.

The lower feed table is provided with devices for registering and positioning the sheet and with devices for starting it after it has been registered, which are duplivates of those described in connection with the upper feed table and accomplish the same results. working, however. alternately in pointof time with those of the upper feed tahle. With the double apparatus which I have. described. I may employ any suitable sheet-delivery. but I prefer to employ two separate deliveries. one 01'' which will receive the sheets fed by the upper feed table, and the .other will rereivc the sheets led by the lower feed table. llerausr by thus eonneeting the two feeding mechanisms with separate deliveries. the sheets from one feed table will always be kept by themselves and are not mixed with those t'ron1.the other table. The gages of the two feed tables are apt to vary troureaeh othersomewhat and consequently the sheets printed from one table will vary slightl from those printed from the other table. This becomes an immaterial mattcr, however, because the sheets .t'rom tho i'ipper table will he delivered by one delivenv, while the sheets from the other table aredelivercd from the other delivery. The sheets from the upper table are passed over the impression cylinder 130 and are printed by the type cylinder 131 and passing 011' the impression cylinder on to the tapes 13; operated by the rolls 133 and 13-1. The ta pes 132 are adapted to carry the sheet" over on to the other tapes 1215 pasaing ()\(i run..- 1::4, rm. 1:17. 13a. 13 no, 14.1, 11:3. and 141;. ()1 these rolls. niunber Hit drives the tapes 1 35). and the rolls 1216, 1537 and l are moved from the positions given in Fig. i to the right, so as to extend the support by tapes 135. The tapes on their return are not traveling.

It will he noted that the tapes 1232 receive the sheets from the top food table from th bottom olf-thc impression cylinder and that the tape-$171) receive the sheets l'rom the lower table from the bottom ot'the delivery cylinder 1-15. By thus locating the receiving; end of the tapes under the hottom of these cylinders. I am enabled to take advantage of thugravitv of the sheets, which tende'to dctlcot the sheet on to the tapes when passing these points.

At- 191) upon the upper table is the usual guard for causing the stopping of the press when any sheet fails to reach the gages. It is mounted on a swinging arm 191 on shaft 192 connected to' the fhrowofi lever from one of the registering tables and the 193 of the operating switch'hy the pitm'an 194. In the case of the lower table .a similar guard 195 is employed, but this guard is located below the paper and Works up ward under impulse from spring 196 when any sheetfails to reach the gages. Guard 1% is connected to lever 193 by a pitman 197 and issupported by an arm not shown attached to shaft- 198. Shafts 192 and 1% both carry arms 199, h which they are operated from the side gages in the usual inanner.

.Havmg thus described my invention claim: I

l. The combination in a printing press and with the printing mechanism thereof, of. two feed tables delivering the sheets al= ternately to the-printing mechanism at the same point and both provided with automatic feeding devices and with means for starting the sheet after it has been registered at the speed of the cylinder to which it is fed.

2. The combination in a printing press and with the printing mechanism thereof,

of two feed tables deliveringthe sheets alternately to the printing mechanism atthe same point'and both provided with automatic feedin" devices, and with means for moving the sheetfrom the registering devices to the printing mechanism, such means gicingthe sheet the speed of the printing mechanism.

3. The combination with the printing mechanism of two iced tables delivering the sheets at the same point, and embodying movable sections, and a single supply table from which the movahle sec ions are alter nately supplied with sheets.

4. The combination with the printing mechanism of two feed tables delivering the sheets at thc same point and emhothvhn inovahle sections, and mechanism for raising and lowering said movable sections, asinglesupply table from which the movable sections are alternately supplied with sheets, and means for feeding the sheets from the supply table to the movable sections.

5. The combination with the printing mechanism of a single paper supply table, two separate feed tables each embodying movable sections adapted to he moved into register with said supply table, means fut moving said sections into register alternately, means for feeding the sheets from the supply table and means for feeding the sheets along the feed tables.

6. The combination with the printing mechanism, of a feed table and two rep" tcring tables adapted to receive the she alternately from the feed table and fr m which the sheets are alternately led to the printing mechanism; and two sheet delivery mechanisms, one receiving the sheets fed z E l the printing mechanism.

other receiving the alternate sheets fed from the other registering table.

7. 'lhe'combination with a printing mechanism of two'feed tables one above the other and adapted to deliver. sheets alternately to the printing mechanism at the same. point, means on each tahle for feeding the sheets to the printing mechanism, and mechanism for registering the sheets 8. T he combination with a printing mechanism of two feed tables one above the other and adapted to deliver sheets alternately to the printing mechanism at the same point, means on each table for feeding thesheets to the printing mechanism, mechanism for registering the sheets; and two sheet delivery mechanisms one receiving the sheets fed by the upper table and the other receiving those fed by the lower table.

3.111 a printing; press the combination with printing mechanism, of two vibrrlry superposed tables adapted to alternately de iii-OI sheets to be printed to the printing mechanism, sheet registering devices on each table, means for raising and lowering the tables, and means for moving the sheets after they have been registered to the printing mechanism. a

101111 a printing press the'coinbination with a cylinder, of two tables adapted to alternately deliver sheets to be printed to the cylinder at the same point, sheet registering devices on each table, means for raising and lowering the tables, and means for moving the sheets after being registered to 11. In aprinting press the combination with a pr nting mechanismot two superposed vibratory tables adapted to alternately deliver sheets to be printed to the same point, sheet registering, devices on each table, autoinat 1e means for moving theshcets after they have been registered on to the printing mechanism, and means for raising and lowering the tables.

12. In a printing piees the combination with an impression cylinder, of two superposed tables adapted to alternately deliar sheets to be printed to the c'vliuder at the same point, sheet registering devices on each table, automatic devices for feeding the sheetsto the registering dm'ices, means for raising and lowering the tables, and means for moving the sheets after being registered tothc printing mechanism.

13. The combination with an impression cylinder, of a common feed table, two registering: tables for supplying sheets from the fowl 'tahlc alternately to'saiil cylinder at th same point. gages on each registering table for registering the sheets, and two sheet deliver mechanisms reslmctively receiving the sheets fed from the related feed tahlcs.

no j

14. The combination with the printing mechanisrincf a single feed tableaud two parallel superposed registering tables adapted to receive the sheets alternately IYOlllFtlltl feed tables, and deliver sheets alternately to the printing mechanism atthe same point. substantially as described.

15. The combination with a printing mechanism, of a feed table and two adjacent parallel superposed registering tables each rovided with means for feeding and means or registering the sheets. and means for automatically shifting said tables so that. they shall alternately deliver the sheets to the printing mechanism, substantially as described.

16. The combination in a printing press. and with the printing mechanism thereof. of two parallel vibrating superposed teed tables adapted to alternately feed sheets to be printed to the printing mechanism. and means for raising and lowering the delivery ends of the tables to alternately deliver the sheets to the printing mechanism.

17. The combination in a printing press and with the printing mechanism thereof, of two parallel superposed vibratory tables adapted to alternately feed the sheets to be printed to the printing mechanism at the same point, automatic sheet teedingdevices on each table, and means for raising and -lowering the tables so that they shall -alternateiy. deliver the sheets to the printing mechanism.

18. The combination in a printing press of an impression cylinder, and a feed tab e with two parallel superposed vibrating registering tables adapted to deliver sheets to be printed to the cylinder, automatic feeding devices on each table, devices for positioning the sheets on each table in correct register,

and means for shifting the tables so that they shall alternately deliver the sheets to the same point of the impression cylinder.

19. The combination in a printing press of an impression cylinder, and two superposed parallel tables; with automatic feeding devices on each table, gages on each table against which the sheets are positioned be fore delivery to the printing mechanism, and means for shifting the tables to cause them to alternately deliver sheets to the same point of the impression cylinder.

20. The combination with the printing mechanism, of two tables arranged one directly above and parallel with the other, and each provided with means for registerthe sheets, and means for delivering the registered sheets alternately from said tables directly to the printing mechanism; with two sheet delivery mechanisms, one receiving the sheets fed from one table, and the other receiving the sheets fed from the other table.

21. In combination with acontinuously rotating impression cylinder, a plurality of superposed devices for feeding sheets to be printed in alternation to saidimpression cylinder at the same point of its revolution, means for registering sheets on said devices prior to their delivery to the impression cylinder, and mechanism for removing the alternate printed sheets from the cylinder at different points.

22. In combination with a continuously rotating cylinder, a plurality of feed tables arranged one directly above and parallel with the other, devices thereon for registering the sheets, and means for alternately feed ing the registered sheets from said tables to said impression cylinder at. the same point in its rotation; with a plurality of delivering mechanisms whereoy the sheets from the different tables are delivered at dilierentpoints.

23. In combination a continuously rotating impression cylinder. two tables arranged one directly above and parallel with the other.- means for registering sheets thereon, and devices for alternately feeding the registered sheets from said tables .to said impression cylinder at the. same point in its rotation; with two delivering mechanisms whereby the sheets from the said tables are separately delivered.

24. The combination with printing mechanism, of a feed table. gages for positioning the sheets'on the table, and movable side clamps adapted to engage the margins of the sheets after being positioned, and deliver the sheets to the printing mechanism, and means for opening and closing the clamps to take and release the sheets.

In a printing press the combination of printing mechanism, a feed table, a registering table, gages thereon adapted to arrest a sheet, devices for feeding a sheet from the feed table to the registering gages, and movable side clamps adapted to engage the registered sheet and move it on to the printing mechanism, said clamps delivering the sheet to the printing mechanism at the speed of such mechanism.

MIC-HAIL.- A. DROITCOUR.

Witnesses:

H. M. Mnxnar, Enwann S. EV-RTS 

